11225161 has 2 divisors, whose sum is σ = 11225162. Its totient is φ = 11225160.

The previous prime is 11225129. The next prime is 11225167. The reversal of 11225161 is 16152211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11095561 + 129600 = 3331^2 + 360^2 .

It is a cyclic number.

It is not a de Polignac number, because 11225161 - 2⁵ = 11225129 is a prime.

It is equal to p₇₄₀₄₁₃ and since 11225161 and 740413 have the same sum of digits, it is a Honaker prime.

It is not a weakly prime, because it can be changed into another prime (11225167) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5612580 + 5612581.

It is an arithmetic number, because the mean of its divisors is an integer number (5612581).

Almost surely, 2^11225161 is an apocalyptic number.

It is an amenable number.

11225161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11225161 is an equidigital number, since it uses as much as digits as its factorization.

11225161 is an evil number, because the sum of its binary digits is even.

The product of its digits is 120, while the sum is 19.

The square root of 11225161 is about 3350.3971406387. The cubic root of 11225161 is about 223.9052067550.

Adding to 11225161 its reverse (16152211), we get a palindrome (27377372).

The spelling of 11225161 in words is "eleven million, two hundred twenty-five thousand, one hundred sixty-one".